Cassisi to complete career with Port

Port Adelaide captain Dom Cassisi says he will finish his AFL career as a one-club player after signing a contract extension.

Cassisi, 29, has played 184 matches since debuting for Port Adelaide in 2002 and is going into his fourth season as captain.

While Port Adelaide as a rule declines to reveal the length of contract extensions, coach Matthew Primus indicated it was for several more seasons.

"I'm delighted that Dom has re-signed and I know he's going to continue to play a very important part in the club's journey over the next few years, both through his leadership and his consistency on-field," Primus said.

Cassisi said it was an "incredible'' feeling to be a one-club player for the Power.

"I love captaining this football club and I'm just so excited as to where our young group has come from and to where it's heading,'' he said.

"We think we've laid a pretty good platform for this season but we're also aware that we need to make the most of our hard work by maintaining our competitiveness across the whole year, starting with a very tough challenge against St Kilda in round one."